[go: up one dir, main page]

WO2010098727A1 - An RFID tag with an improved communication between an external logic element conductively connected thereto and an interrogator as well as a method for such communication - Google Patents

An RFID tag with an improved communication between an external logic element conductively connected thereto and an interrogator as well as a method for such communication Download PDF

Info

Publication number
WO2010098727A1
WO2010098727A1 PCT/SI2010/000008 SI2010000008W WO2010098727A1 WO 2010098727 A1 WO2010098727 A1 WO 2010098727A1 SI 2010000008 W SI2010000008 W SI 2010000008W WO 2010098727 A1 WO2010098727 A1 WO 2010098727A1
Authority
WO
WIPO (PCT)
Prior art keywords
rfid tag
transferred
data
interrogator
logic element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/SI2010/000008
Other languages
French (fr)
Inventor
Kosta Kovacic
Vinko Kunc
Andrej Vodopivec
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IDS doo
Original Assignee
IDS doo
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IDS doo filed Critical IDS doo
Priority to EP10712590.8A priority Critical patent/EP2401707B1/en
Priority to CN201080009350.4A priority patent/CN102334134B/en
Priority to US13/138,456 priority patent/US9202157B2/en
Publication of WO2010098727A1 publication Critical patent/WO2010098727A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07737—Constructional details, e.g. mounting of circuits in the carrier the record carrier consisting of two or more mechanically separable parts
    • G06K19/07741—Constructional details, e.g. mounting of circuits in the carrier the record carrier consisting of two or more mechanically separable parts comprising a first part operating as a regular record carrier and a second attachable part that changes the functional appearance of said record carrier, e.g. a contact-based smart card with an adapter part which, when attached to the contact card makes the contact card function as a non-contact card
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • G06K19/07766—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card comprising at least a second communication arrangement in addition to a first non-contact communication arrangement
    • G06K19/07769—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card comprising at least a second communication arrangement in addition to a first non-contact communication arrangement the further communication means being a galvanic interface, e.g. hybrid or mixed smart cards having a contact and a non-contact interface

Definitions

  • An RFID tag with an improved communication between an external logic element conductively connected thereto and an interrogator as well as a method for such communication
  • the present invention relates to an RFID tag with an improved communication between an external logic element conductively connected thereto and to an interrogator, in which RFID tag an antenna is connected to a memory access arbiter, which is on the one side connected to a non-volatile memory and on the other side it is connected through a serial peripheral interface to the external logic element.
  • the present invention also relates to a method for such communication.
  • An RFID tag is usually self-sufficient in its operation, which is advantageously reflected in its price.
  • an RFID tag provided with a battery power supply combined with a passive supply of power, which a tag antenna picks up from the radio-frequency radiation field generated by an interrogator (SI 2008 0 0309 A).
  • SI 2008 0 0309 A An automatic selection of a way of supplying the RFID tag is provided for in a way that it is stably supplied by the battery as long as possible, however, this is rendered possible for a longer time due to a very low voltage drop across a controlled switching circuit, and that a supply by a radio-frequency radiation field is selected only when the battery gets depleted.
  • RPID tag may be provided with one or several sensors acquiring magnitudes of physical quantities related to a tagged article.
  • an RPID tag is normally not designed for extending the applicability and adding new functions, as no external element can be added on.
  • An RPID tag designed for a communication between an external logic element connected thereto and an interrogator (JP 2007049418 A).
  • An integrated circuit of the tag comprises an RFID interface, an interface for a serial contact communication and a non- volatile memory to store data and programs.
  • a data transfer from the interrogator to the external logic element is carried out by using a command transmitted by the interrogator.
  • the data transferred from the interrogator are stored in the non-volatile memory of the tag and then read by the external logic element.
  • the storing of data into the non-volatile memory takes as much as several milliseconds.
  • a low data transfer rate resulting herefrom is disadvantageous.
  • an implementation of said function into the existing RPID infrastructure is complicated since an additional data transfer command, which is not prescribed by the standard, is needed.
  • An integrated circuit MLX90129 of an RPID tag (www.MELEXIS.com).
  • a communication between an external logic element conductively connected to said RFID tag and an interrogator is here designed as an additional function. No additional command is needed to execute said function.
  • a tag antenna is connected to a memory access arbiter, which is on the one side connected to a non- volatile memory and on the other side through a serial peripheral interface to the external logic element. Said communication is carried out by means of a non- volatile EEPROM memory of the tag.
  • the interrogator writes the data into said non- volatile memory.
  • the RPID tag issues an interrupt request transferred to the external logic element. Said external logic element then requests the data in the RFID tag to be read.
  • the data read in the RPID tag are transferred to the external logic element and the data from the external logic element are transferred into the RFID tag and further into the interrogator after the status information has been checked.
  • a disadvantage of the communication by means of an RFID tag between the interrogator and the external logic element exists in that the writing of each word into the non-volatile memory of the tag takes as much as several milliseconds.
  • the invention solves the technical problem to improve an RFID tag circuit as well as a method to shorten a time needed for a communication between an interrogator and an external logic element connected to the RFID tag whereat, in the first place, an embodiment using only standardized commands of the RFID infrastructure should be proposed and, in the second place, to additionally shorten said time an embodiment using also a command, which as far has not yet been used in the RFID infrastructure so far, should also be proposed.
  • the RFID tag of the invention provides for a faster communication between an interrogator and an external logic element by one order of magnitude, which is due to fast volatile memories for transferred data as well as for corresponding status information.
  • a still higher communication rate is achieved by introducing a command that has not yet been standardized.
  • Fig. 1 a schematic presentation of an RFID tag improved by the invention together with an external logic element
  • Figs. 2 and 3 a schematically presented time chart of a communication between an interrogator and the external logic element according to the first and second embodiments of the improved method of the invention.
  • An RFID tag improved by the invention and designed for a communication between an interrogator and an external logic element ELE, e.g. a microcontroller coductively series-connected to the RFID tag, is provided on a tag integrated circuit TIC (Fig. 1).
  • An antenna A, a supply battery B and the external logic element ELE are connected to the tag integrated circuit TIC.
  • the antenna A is connected through an analogue radio-frequency block ARFB and a digital radio-frequency block DRFB to a memory access arbiter MAA.
  • the memory access arbiter MAA is on the one side connected to a non-volatile memory NVM and on the other side it is connected through a serial peripheral interface SPI to the external logic element ELE.
  • a unique address space UAS is built up in the RFID tag.
  • Said unique address space UAS comprises the non-volatile memory NVM, a transferred data memory TDM and a status-information memory SIM storing information on the status of the transferred data memory TDM.
  • the memory access arbiter MAA is connected to the unique address space UAS.
  • the transferred data memory TDM as well as the status-information memory SIM should be volatile memories. They actually are memory locations of said kind and have a memory capacity according to the standard of an applied RPID communication: 32 bits at ISO 15693 and 16 bits at EPC GEN2 (ISO 18000-6/c).
  • the transferred data memory TDM and the status-information memory SIM can be random- access memories.
  • a time in the order of magnitude of only one nanosecond is needed for writing data into the RAM memory.
  • a processing time being in the order of magnitude of 100 microseconds becomes noticeable at so fast data writing.
  • Total time of data storing into the RAM memory is for one order of magnitude shorter than the time of data storing into the non-volatile memory.
  • An address of the transferred data memory TDM and an address of the status- information memory SIM should be adjacent addresses in the unique address space UAS. It is advantageous for the application to have the transferred data memory TDM located at a first or a last address in the unique address space UAS.
  • the RFID tag with the improved communication between the interrogator and the external logic element ELE is further improved in the following respect.
  • the external logic element ELE as well as the memory access arbiter MAA, the serial peripheral interface SPI as well as the memories in the unique address space UAS can be also supplied from the battery B through a controlled switched circuit CSC.
  • the controlled switched circuit CSC is disclosed in the patent application SI 2008 0 0309 (PCT/SI2009/000066). An automatic selection of the power supply mode is available to said blocks in the tag and to the external logic element ELE.
  • the continuation will present an improved method of the invention for the communication between the interrogator and the external logic element ELE, which is conductively connected to the RFID tag.
  • the improved method of the invention is carried out by means of the improved RFID tag disclosed above.
  • FIG. 2 A time development of the communication between the interrogator and the external logic element ELE according to a first embodiment of the method of the invention is schematically represented in Fig. 2.
  • Data from the interrogator are transferred to the RFID tag in a first step ITl.
  • the RFID tag acknowledges said data transfer to the interrogator in a second step TIl .
  • the RFID tag then issues an interrupt request transferred to the external logic element ELE in a third step TEl .
  • the external logic element ELE requests the data in the RFID tag to be read and transferred to itself in a fourth step ETl.
  • the data read in the RFID tag are transferred to the external logic element ELE in a fifth step TE2 and thereafter the data from the external logic element ELE are transferred to the RFID tag in a sixth step ET2.
  • the interrogator hitherto in the known way repeats requesting the information on the status of the transferred data memory TDM to be read in subsequent intermediate steps IT2, IT3, ... of a first kind and said status information repeats to be transferred from the RFID tag to the interrogator in subsequent intermediate steps IT2, IT3, ... of a second kind.
  • the interrogator checks whether new data, which should have been transferred from the external logic element ELE into the RFID tag or, in other words, have been transferred in the sixth step ET2, are already stored in the RFID tag.
  • the interrogator in an eighth step IT4 requests in a known way said new data in the RFID tag to be read.
  • the new data are transferred from the RFID tag to the interrogator in a nineth step TI4.
  • the method for the communication between the interrogator and the external logic element ELE is improved according to the invention in that the transferred data are stored in the RFID tag in the transferred data memory TDM, which is a volatile memory, and that said information on the status of the transferred data memory TDM is stored in the RFID tag in a status-information memory SIM, which is a volatile memory.
  • a fast volatile memory a random-access memory can be used, for eaxample.
  • Data from the interrogator are transferred to the RFID tag in a first step ITl'.
  • the RFID tag issues an interrupt request, which is transferred to the external logic element ELE in a second step TEl .
  • Said external logic element ELE requests the data in the RFID tag to be read and transferred to itself in a third step ETl.
  • the data read in the RFID tag are transferred to the external logic element ELE in a fourth step TE2 and then the data from the external logic element ELE are transferred to the RFID tag in a fifth step ET2.
  • the method for the communication between the interrogator and the external logic element ELE is improved according to the invention already at its very beginning in that the command for carrying out the first step ITT is improved.
  • a command that the RFID tag shall wait for new data and then transfer them to the interrogator is transferred from the interrogator to the RFID tag together with the data in the first step ITl'.
  • the RFID tag then waits till the data have been transferred to the RFID tag from the external logic element ELE.
  • the RFID tag does not acknowledge the data transfer in this step neither communication in steps IT2, TI2; IT3, TI3, ... from said first embodiment starts between the interrogator and the RFID tag, in which steps the interrogator requested the status information from the RFID tag and the RFID tag transferred said information to it.
  • the command for carrying out said first step ITl' is new and has not yet been standardized in the RFID technology. Then according to the invention said new data, which in the mean time have been transferred from the external logic element ELE, are transferred from the RFID tag to the interrogator in a sixth step TIl.
  • the method for the communication between the interrogator and the external logic element ELE is further improved according to the invention in that the transferred data are stored in the RFID tag in the transferred data memory TDM, which is a volatile memory, a random-access memory for example.
  • the communication between the interrogator and the external logic element ELE according to the second embodiment of the improved method proceeds faster than a communication known so far since a time to write data into the RFID tag is saved and with a new set of commands a number of steps in communication between the interrogator and the RFID tab is decreased.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

A memory access arbiter (MAA) in an RFID tag is connected to an unique address space (UAS), which comprises a non-volatile memory (NVM), a transferred data memory (TDM) and a status-information memory (SIM) storing information on the status of the transferred data memory (TDM). The transferred data memory (TDM) and the status-information memory (SIM) are volatile memories, e.g. of the RAM type having a memory capacity of 16 bits or 32 bits according to the standard of an applied RFID communication. The RFID tag of the invention provides for a faster communication between an interrogator and an external logic element by one order of magnitude, which is due to fast volatile memories for transferred data as well as for corresponding status information. A still higher communication rate is achieved by introducing a command that has not yet been standardized.

Description

An RFID tag with an improved communication between an external logic element conductively connected thereto and an interrogator as well as a method for such communication
The present invention relates to an RFID tag with an improved communication between an external logic element conductively connected thereto and to an interrogator, in which RFID tag an antenna is connected to a memory access arbiter, which is on the one side connected to a non-volatile memory and on the other side it is connected through a serial peripheral interface to the external logic element. The present invention also relates to a method for such communication.
An RFID tag is usually self-sufficient in its operation, which is advantageously reflected in its price.
Furthermore, there is also known an RFID tag provided with a battery power supply combined with a passive supply of power, which a tag antenna picks up from the radio-frequency radiation field generated by an interrogator (SI 2008 0 0309 A). An automatic selection of a way of supplying the RFID tag is provided for in a way that it is stably supplied by the battery as long as possible, however, this is rendered possible for a longer time due to a very low voltage drop across a controlled switching circuit, and that a supply by a radio-frequency radiation field is selected only when the battery gets depleted. Such RPID tag may be provided with one or several sensors acquiring magnitudes of physical quantities related to a tagged article.
Nevertheless, an RPID tag is normally not designed for extending the applicability and adding new functions, as no external element can be added on.
There is known an RPID tag designed for a communication between an external logic element connected thereto and an interrogator (JP 2007049418 A). An integrated circuit of the tag comprises an RFID interface, an interface for a serial contact communication and a non- volatile memory to store data and programs. A data transfer from the interrogator to the external logic element is carried out by using a command transmitted by the interrogator. The data transferred from the interrogator are stored in the non-volatile memory of the tag and then read by the external logic element. The storing of data into the non-volatile memory takes as much as several milliseconds. A low data transfer rate resulting herefrom is disadvantageous. Moreover, an implementation of said function into the existing RPID infrastructure is complicated since an additional data transfer command, which is not prescribed by the standard, is needed.
There is also known an integrated circuit MLX90129 of an RPID tag (www.MELEXIS.com). A communication between an external logic element conductively connected to said RFID tag and an interrogator is here designed as an additional function. No additional command is needed to execute said function. A tag antenna is connected to a memory access arbiter, which is on the one side connected to a non- volatile memory and on the other side through a serial peripheral interface to the external logic element. Said communication is carried out by means of a non- volatile EEPROM memory of the tag. The interrogator writes the data into said non- volatile memory. The RPID tag issues an interrupt request transferred to the external logic element. Said external logic element then requests the data in the RFID tag to be read. The data read in the RPID tag are transferred to the external logic element and the data from the external logic element are transferred into the RFID tag and further into the interrogator after the status information has been checked. A disadvantage of the communication by means of an RFID tag between the interrogator and the external logic element exists in that the writing of each word into the non-volatile memory of the tag takes as much as several milliseconds.
The invention solves the technical problem to improve an RFID tag circuit as well as a method to shorten a time needed for a communication between an interrogator and an external logic element connected to the RFID tag whereat, in the first place, an embodiment using only standardized commands of the RFID infrastructure should be proposed and, in the second place, to additionally shorten said time an embodiment using also a command, which as far has not yet been used in the RFID infrastructure so far, should also be proposed.
Said technical problem is solved by the improved RFID tag of the invention with an improved communication between an external logic element conductively connected thereto and an interrogator whereat said RFID tag is characterized by the features of the characterizing portion of the first claim and dependent claims 2 to 4 characterize the variants of the embodiment. Said technical problem is also solved by the improved method of the invention, the embodiments of which are characterized by the features of the characterizing portion of the fifth and sixth claims.
The RFID tag of the invention provides for a faster communication between an interrogator and an external logic element by one order of magnitude, which is due to fast volatile memories for transferred data as well as for corresponding status information. However, a still higher communication rate is achieved by introducing a command that has not yet been standardized.
The invention will now be explained in more detail by way of a description of embodiments and with reference to the accompanying drawing representing in: Fig. 1 a schematic presentation of an RFID tag improved by the invention together with an external logic element, and Figs. 2 and 3 a schematically presented time chart of a communication between an interrogator and the external logic element according to the first and second embodiments of the improved method of the invention.
An RFID tag improved by the invention and designed for a communication between an interrogator and an external logic element ELE, e.g. a microcontroller coductively series-connected to the RFID tag, is provided on a tag integrated circuit TIC (Fig. 1). An antenna A, a supply battery B and the external logic element ELE are connected to the tag integrated circuit TIC.
The antenna A is connected through an analogue radio-frequency block ARFB and a digital radio-frequency block DRFB to a memory access arbiter MAA. The memory access arbiter MAA is on the one side connected to a non-volatile memory NVM and on the other side it is connected through a serial peripheral interface SPI to the external logic element ELE.
The RFID tag designed for the communication between the interrogator and the external logic element ELE is improved according to the invention in the following way. A unique address space UAS is built up in the RFID tag. Said unique address space UAS comprises the non-volatile memory NVM, a transferred data memory TDM and a status-information memory SIM storing information on the status of the transferred data memory TDM. The memory access arbiter MAA is connected to the unique address space UAS.
The transferred data memory TDM as well as the status-information memory SIM should be volatile memories. They actually are memory locations of said kind and have a memory capacity according to the standard of an applied RPID communication: 32 bits at ISO 15693 and 16 bits at EPC GEN2 (ISO 18000-6/c).
Therefore, the transferred data memory TDM and the status-information memory SIM can be random- access memories. A time in the order of magnitude of only one nanosecond is needed for writing data into the RAM memory. A processing time being in the order of magnitude of 100 microseconds becomes noticeable at so fast data writing. Total time of data storing into the RAM memory is for one order of magnitude shorter than the time of data storing into the non-volatile memory. Hence, the communication improved by the invention between the interrogator and the external logic element ELE proceeds faster than such communication known so far.
An address of the transferred data memory TDM and an address of the status- information memory SIM should be adjacent addresses in the unique address space UAS. It is advantageous for the application to have the transferred data memory TDM located at a first or a last address in the unique address space UAS.
The RFID tag with the improved communication between the interrogator and the external logic element ELE is further improved in the following respect. The external logic element ELE as well as the memory access arbiter MAA, the serial peripheral interface SPI as well as the memories in the unique address space UAS can be also supplied from the battery B through a controlled switched circuit CSC. The controlled switched circuit CSC is disclosed in the patent application SI 2008 0 0309 (PCT/SI2009/000066). An automatic selection of the power supply mode is available to said blocks in the tag and to the external logic element ELE.
The continuation will present an improved method of the invention for the communication between the interrogator and the external logic element ELE, which is conductively connected to the RFID tag. The improved method of the invention is carried out by means of the improved RFID tag disclosed above.
A time development of the communication between the interrogator and the external logic element ELE according to a first embodiment of the method of the invention is schematically represented in Fig. 2.
Data from the interrogator are transferred to the RFID tag in a first step ITl. The RFID tag acknowledges said data transfer to the interrogator in a second step TIl . The RFID tag then issues an interrupt request transferred to the external logic element ELE in a third step TEl . The external logic element ELE requests the data in the RFID tag to be read and transferred to itself in a fourth step ETl. The data read in the RFID tag are transferred to the external logic element ELE in a fifth step TE2 and thereafter the data from the external logic element ELE are transferred to the RFID tag in a sixth step ET2.
However, the interrogator hitherto in the known way repeats requesting the information on the status of the transferred data memory TDM to be read in subsequent intermediate steps IT2, IT3, ... of a first kind and said status information repeats to be transferred from the RFID tag to the interrogator in subsequent intermediate steps IT2, IT3, ... of a second kind. On the basis of the read status information, the interrogator checks whether new data, which should have been transferred from the external logic element ELE into the RFID tag or, in other words, have been transferred in the sixth step ET2, are already stored in the RFID tag.
Only when the data from the external logic element ELE have been transferred to the RFID tag in the sixth step ET2 and the information on the new status of the transferred data memory TDM has been transferred from the RFID tag to the interrogator in a seventh step TI3 the interrogator in an eighth step IT4 requests in a known way said new data in the RFID tag to be read. The new data are transferred from the RFID tag to the interrogator in a nineth step TI4.
The method for the communication between the interrogator and the external logic element ELE is improved according to the invention in that the transferred data are stored in the RFID tag in the transferred data memory TDM, which is a volatile memory, and that said information on the status of the transferred data memory TDM is stored in the RFID tag in a status-information memory SIM, which is a volatile memory. As a fast volatile memory a random-access memory can be used, for eaxample.
The communication between the interrogator and the external logic element ELE improved in such way proceeds faster than a communication known so far, in spite of the fact that the data transfer from the interrogator to the external logic element ELE and back is carried out by means of the existing set of standardized RFID commands to write and read. A time development of the communication between the interrogator and the external logic element ELE according to a second embodiment of the method of the invention is schematically represented in Fig. 3.
Data from the interrogator are transferred to the RFID tag in a first step ITl'. The RFID tag issues an interrupt request, which is transferred to the external logic element ELE in a second step TEl . Said external logic element ELE requests the data in the RFID tag to be read and transferred to itself in a third step ETl. The data read in the RFID tag are transferred to the external logic element ELE in a fourth step TE2 and then the data from the external logic element ELE are transferred to the RFID tag in a fifth step ET2.
The method for the communication between the interrogator and the external logic element ELE is improved according to the invention already at its very beginning in that the command for carrying out the first step ITT is improved. A command that the RFID tag shall wait for new data and then transfer them to the interrogator is transferred from the interrogator to the RFID tag together with the data in the first step ITl'. The RFID tag then waits till the data have been transferred to the RFID tag from the external logic element ELE. Hence, after the first step ITl' has been performed the RFID tag does not acknowledge the data transfer in this step neither communication in steps IT2, TI2; IT3, TI3, ... from said first embodiment starts between the interrogator and the RFID tag, in which steps the interrogator requested the status information from the RFID tag and the RFID tag transferred said information to it. The command for carrying out said first step ITl' is new and has not yet been standardized in the RFID technology. Then according to the invention said new data, which in the mean time have been transferred from the external logic element ELE, are transferred from the RFID tag to the interrogator in a sixth step TIl.
The method for the communication between the interrogator and the external logic element ELE is further improved according to the invention in that the transferred data are stored in the RFID tag in the transferred data memory TDM, which is a volatile memory, a random-access memory for example.
The communication between the interrogator and the external logic element ELE according to the second embodiment of the improved method proceeds faster than a communication known so far since a time to write data into the RFID tag is saved and with a new set of commands a number of steps in communication between the interrogator and the RFID tab is decreased.

Claims

Claims
1. An RFID tag with an improved communication between an external logic element (ELE) conductively connected thereto and an interrogator, in which RFID tag an antenna (A) is connected to a memory access arbiter (MAA), which on the one side is connected to a non-volatile memory (NVM) and on the other side it is connected through a serial peripheral interface (SPI) to the external logic element (ELE), characterized in that the memory access arbiter (MAA) is connected to an unique address space (UAS), that the unique address space (UAS) comprises the non-volatile memory (NVM), a transferred data memory (TDM) and a status-information memory (SIM) storing information on the status of the transferred data memory (TDM) and that the transferred data memory (TDM) and the status-information memory (SIM) are volatile memories.
2. The RFID tag as recited in claim 1, characterized in that the transferred data memory (TDM) and the status-information memory (SIM) are random- access memories.
3. The RFID tag as recited in claim 1 or 2, characterized in that an address of the transferred data memory (TDM) and an address of the status- information memory (SIM) are adjacent addresses in the unique address space (UAS).
4. The RFID tag according to any of preceding claims, characterized in that the external logic element (ELE) is connected through a controlled switched circuit (CSC) to a power supply from an interrogator radio-frequency radiation field as well as to a battery (B), which is an external source to supply power to the RFID tag.
5. A method for an improved communication by means of an RFID tag between an interrogator and an external logic element (ELE), which is conductively connected to said RFID tag, by which method data are transferred from the interrogator to the RFID tag in a first step (ITl), the RFID tag acknowledges said data transfer to the interrogator in a second step (TIl) and then issues an interrupt request transferred to the external logic element (ELE) in a third step (TEl), in a fourth step (ETl) said external logic element (ELE) requests the data in the RFID tag to be read and transferred to itself, the data read in the RFID tag are transferred to the external logic element (ELE) in a fifth step (TE2) and data from the external logic element (ELE) are transferred to the RFID tag in a sixth step (ET2) but the interrogator hitherto repeats requesting the information on the status of the transferred data memory (TDM) to be read in subsequent intermediate steps (IT2, IT3, ...) of a first kind and said status information repeats to be transferred from the RFID tag to the interrogator in subsequent intermediate steps (IT2, IT3, ...) of a second kind and after the sixth step (ET2) had been performed the information on the new status of the transferred data memory (TDM) is transferred from the RFID tag to the interrogator in a seventh step (TI3) and in an eighth step (IT4) the interrogator requests data in the RFID tag to be read and the data are transferred from the RFID tag to the interrogator in a nineth step (TI4), characterized in that the transferred data are stored in the RFID tag in the transferred data memory
(TDM), which is a volatile memory, and that said information on the status of the transferred data memory (TDM) is stored in the RFID tag in a status-information memory (SIM), which is a volatile memory.
6. A method for an improved communication by means of an RFID tag between an interrogator and an external logic element (ELE), which is conductively connected to said RFID tag, by which method data are transferred from the interrogator to the RFID tag in a first step (ITl1), the RFID tag issues an interrupt request, which is transferred to the external logic element (ELE) in a second step (TEl), said external logic element (ELE) requests the data in the RFID tag to be read and transferred to itself in a third step (ETl), the data read in the RFID tag are transferred to the external logic element (ELE) in a fourth step (TE2) and the data from the external logic element (ELE) are transferred to the RFID tag in a fifth step (ET2), characterized in that a command, consisting in that the RFID tag shall wait for new data till they are transferred to the RFID tag from the external logic element (ELE), together with said data is transferred from the interrogator to the RFID tag in the first step (ITl1), that thereafter said new data are transferred from the RFID tag to the interrogator in a sixth step (TIl) and that the transferred data are stored in the RFID tag in the transferred data memory (TDM), which is a volatile memory.
PCT/SI2010/000008 2009-02-27 2010-02-23 An RFID tag with an improved communication between an external logic element conductively connected thereto and an interrogator as well as a method for such communication Ceased WO2010098727A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP10712590.8A EP2401707B1 (en) 2009-02-27 2010-02-23 An rfid tag with an improved communication between an external logic element conductively connected thereto and an interrogator as well as a method for such communication
CN201080009350.4A CN102334134B (en) 2009-02-27 2010-02-23 RFID tag having improved communication between an external logic element conductively connected thereto and an interrogator, and method for such communication
US13/138,456 US9202157B2 (en) 2009-02-27 2010-02-23 RFID tag with an improved communication between an external logic element conductively connected thereto and an interrogator as well as a method for such communication

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SI200900055A SI22987A (en) 2009-02-27 2009-02-27 Label for contactless identification by enhanced communication between an external logical element connected to it by electro-plating and polling device as well as procedure for such communication
SIP-200900055 2009-02-27

Publications (1)

Publication Number Publication Date
WO2010098727A1 true WO2010098727A1 (en) 2010-09-02

Family

ID=42199962

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SI2010/000008 Ceased WO2010098727A1 (en) 2009-02-27 2010-02-23 An RFID tag with an improved communication between an external logic element conductively connected thereto and an interrogator as well as a method for such communication

Country Status (5)

Country Link
US (1) US9202157B2 (en)
EP (2) EP3139312A1 (en)
CN (1) CN102334134B (en)
SI (1) SI22987A (en)
WO (1) WO2010098727A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11213773B2 (en) 2017-03-06 2022-01-04 Cummins Filtration Ip, Inc. Genuine filter recognition with filter monitoring system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5802325A (en) * 1992-07-09 1998-09-01 Gemplus Card International Mass memory card with input/output function
US20060026348A1 (en) * 2004-07-08 2006-02-02 Wallace Robert F Portable memory devices with removable caps that effect operation of the devices when attached
US20060069814A1 (en) * 2004-09-28 2006-03-30 Abraham Dalen M Mass storage device with near field communications
JP2007049418A (en) 2005-08-10 2007-02-22 Teruya:Kk Batteryless RFID tag with multi-interface port
US20070239929A1 (en) * 2006-04-07 2007-10-11 Chen Ben W Wireless flash memory card expansion system

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5874902A (en) * 1996-07-29 1999-02-23 International Business Machines Corporation Radio frequency identification transponder with electronic circuit enabling/disabling capability
FR2800228B1 (en) * 1999-10-26 2002-02-08 Wavecom Sa SYSTEM AND METHOD FOR CONTROLLING THIRD PARTY EQUIPMENT THROUGH A SIM CARD THROUGH A RADIO COMMUNICATION MODULE, CORRESPONDING RADIO COMMUNICATION MODULE AND THIRD PARTY EQUIPMENT
US6696952B2 (en) * 2000-08-04 2004-02-24 Hei, Inc. Structures and assembly methods for radio-frequency-identification modules
US6882274B2 (en) * 2001-05-02 2005-04-19 Northrop Grumman Corporation Energy conserving satellite tracking tag
US7267262B1 (en) * 2001-08-06 2007-09-11 Seecontrol, Inc. Method and apparatus confirming return and/or pick-up valuable items
JP3617509B2 (en) 2001-10-31 2005-02-09 ソニー株式会社 IC card, information processing terminal, three-party data communication system and method
JP4337645B2 (en) * 2004-06-17 2009-09-30 セイコーエプソン株式会社 IC tag module, electronic device, information communication system, and IC tag module communication control method
GB2423672B (en) * 2005-02-23 2009-09-16 Hewlett Packard Development Co Memory tag
US20060279413A1 (en) * 2005-03-28 2006-12-14 Sirit Technologies, Inc. Radio frequency identification device
US20060232412A1 (en) * 2005-04-15 2006-10-19 Jorge Tabacman & Associates P/L Intelligent reader system and method for identifying and tracking goods and materials transported in pallets, including but not limited to scaffolding materials
US7330120B2 (en) * 2005-04-29 2008-02-12 Hewlett-Packard Development Company, L.P. Remote measurement of motion employing RFID
US7408463B2 (en) * 2005-09-30 2008-08-05 Intel Corporation Radio frequency identification tag
DE602006004011D1 (en) * 2006-05-16 2009-01-15 Em Microelectronic Marin Sa Method and system for authentication and secure exchange of data between a personalized chip and a dedicated server
US20080316002A1 (en) * 2007-06-25 2008-12-25 Brunet Peter T Pre-configuration of user preferences
US8547957B2 (en) * 2007-07-23 2013-10-01 Savi Technology, Inc. Method and apparatus for providing security in a radio frequency identification system
SI22945A (en) 2008-12-16 2010-06-30 IDS@d@o@o Procedure for battery based and passive power supply of rfid labels and switching circuit for performing this procedure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5802325A (en) * 1992-07-09 1998-09-01 Gemplus Card International Mass memory card with input/output function
US20060026348A1 (en) * 2004-07-08 2006-02-02 Wallace Robert F Portable memory devices with removable caps that effect operation of the devices when attached
US20060069814A1 (en) * 2004-09-28 2006-03-30 Abraham Dalen M Mass storage device with near field communications
JP2007049418A (en) 2005-08-10 2007-02-22 Teruya:Kk Batteryless RFID tag with multi-interface port
US20070239929A1 (en) * 2006-04-07 2007-10-11 Chen Ben W Wireless flash memory card expansion system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11213773B2 (en) 2017-03-06 2022-01-04 Cummins Filtration Ip, Inc. Genuine filter recognition with filter monitoring system

Also Published As

Publication number Publication date
CN102334134B (en) 2015-04-01
US9202157B2 (en) 2015-12-01
SI22987A (en) 2010-08-31
EP2401707B1 (en) 2016-11-16
EP2401707A1 (en) 2012-01-04
US20110298588A1 (en) 2011-12-08
CN102334134A (en) 2012-01-25
EP3139312A1 (en) 2017-03-08

Similar Documents

Publication Publication Date Title
US7149135B2 (en) Multi chip package type memory system and a replacement method of replacing a defect therein
US8244762B2 (en) Method for configuring an IC card in order to receive personalization commands
US7237049B2 (en) Multimedia/secure digital cards and adapters for interfacing using voltage levels to determine host types and methods of operating
US7233541B2 (en) Storage device
US20060064537A1 (en) Memory card having a storage cell and method of controlling the same
KR20090101195A (en) Command Based Control of NAD Flash Memory
US20090235025A1 (en) Memory card capable of reducing power consumption
CN101197006B (en) Smart card and data write-in method
EP1236079B1 (en) Computer arrangement using non-refreshed dram
JP2007265391A (en) Electronic subsystem assembly including radio frequency interface
US7490193B2 (en) Flash memory devices with MMC interfaces and methods of operating the same
US9202157B2 (en) RFID tag with an improved communication between an external logic element conductively connected thereto and an interrogator as well as a method for such communication
US20080065789A1 (en) Multi-purpose IO system
CN101339812B (en) Storage apparatus test apparatus
US10509636B2 (en) System, method and personalizable portable device in which application code libraries are distributed in a compressed form
EP3236405B1 (en) Selecting an application on a card
US8074023B2 (en) In-system programming to switch memory access from one area to another in memory cards
CN100386748C (en) Method and system for chip selecting of peripheral device in singe board computer
US20130019055A1 (en) Memory control device and method
JP7438432B1 (en) Electronic information storage medium, IC chip, IC card, record writing method, and program
CN114664336B (en) Stacked memory device, memory chip and control method thereof
CN202331504U (en) Multifunctional RFID (Radio Frequency Identification Devices) terminal inquiring equipment
JP2000163546A (en) Ic card and its using method
EP3086272A1 (en) Selecting an application on a card
KR20150005754A (en) Issuing method and storing method of user data based on specific personalization command for IC card

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 201080009350.4

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10712590

Country of ref document: EP

Kind code of ref document: A1

DPE1 Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101)
WWE Wipo information: entry into national phase

Ref document number: 13138456

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE

REEP Request for entry into the european phase

Ref document number: 2010712590

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2010712590

Country of ref document: EP